Tweak datamodule configs to use torchvision dir

[lebrice]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 61.53846% with 10 lines in your changes missing coverage. Please review.

Project coverage is 66.25%. Comparing base (1241d58) to head (ee03fea).
Report is 1 commits behind head on master.

Files	Patch %	Lines
project/utils/env_vars.py	61.53%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #37      +/-   ##
==========================================
- Coverage   66.39%   66.25%   -0.14%     
==========================================
  Files          52       52              
  Lines        2907     2925      +18     
==========================================
+ Hits         1930     1938       +8     
- Misses        977      987      +10     

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